WAEC Past Questions and Answers - Page 3327

16,631.

The diagrams below are illustrations of two different cells involved in biological processing in mammals. Study them and answer this question.

Which parts of P and Q fuse to complete the biological process?

A.

III and I

B.

IV and I

C.

III and II

D.

IV and II

Correct answer is A

P is a sperm cell whose nucleus (iii) then fuses with the  egg plasma membrane (i) of the ovum (Q) and injects its nucleus and other organelles into the egg cytoplasm.

16,632.

The diagram below is an illustration of some parts of a mammalian ear. Study it and answer this question.

Which of the parts are correctly grouped?

A.

(Inner ear I, IV) (Middle ear III) (Outer ear II)

B.

(Inner ear III) (Middle ear II, IV) (Outer ear I)

C.

(Inner ear III) (Middle ear II) (Outer ear III,IV)

D.

(Inner ear II) (Middle ear I, III) (Outer ear IV)

Correct answer is D

No explanation has been provided for this answer.

16,633.

The diagram below is an illustration of some parts of a mammalian ear. Study it and answer this question.

The parts labelled I are the?

A.

semi circular canals

B.

ossicles

C.

cochlea

D.

external auditory meatus

Correct answer is B

No explanation has been provided for this answer.

16,634.

The diagram below is an illustration of some parts of a mammalian ear. Study it and answer this question.

The middle ear is connected to the pharynx by the part labelled

A.

I

B.

II

C.

III

D.

IV

Correct answer is A

No explanation has been provided for this answer.

16,635.

The table below shows the effect of hormones I, II, III, and IV on some parts of the human body. Where (✓) represents effects and (X) represents no effect of hormone on the corresponding part of the body. Study it and answer this question.

The hormone responsible for anxiety is?

A.

I

B.

II

C.

III

D.

IV

Correct answer is A

No explanation has been provided for this answer.